Loom shuttle-threader.



J. N. LE VASSEUR-BELISLE.

LOOM SHUTTLE THREADER.

- APPLICATION FILED AUG.30, 1911. 1,043,780. Patented Nov. 5, 1912.

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wfnesss a J /1. [5/03560 KHWQM 949$ J. N. LE VASSEUR-BELISLE. LOOM SHUTTLE THREADER.. APPLICATION FILED AUG. 30, 1911.

1,043,780. Patented Nov. 5, 1912.

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witness (as: In vento z'f JOSEPH NAIPOLDEB. LE VASSEUB-BELISLE, 0F WORCESTER, MASSACHUSETTS.

LOOM SHUTTLE-THREADER.

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Specification of Letters Patent.

Patented Nov. 5, 1912.,

Application filed August 30, 1911. Serial No. 646,80G.

To all whom "it may concern:

Be it known that I, Josern NAIPOLDER Ln VAssEUR-BELISLE, a citizen of the United States of America, residing at \Vorcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Loom Shuttle- Threaders, of which the following is a speci fication.

My invention relates to improvements in weaving shuttles and especially to thread tensioning devices therefor.

An object of the invention is to ppovide a more simple, economical, eflicient and pracdrawings in which similar reference chartical tensioning device than has heretofore been known.

A further object isto provide means for quickly and easily regulating the tension, and a still further object is to provide quick and easy means of removing, replacing and renewing the essential member of the tensioning device or friction bar.

I attain the foregoing objects by the mech anism hereinafter described and claimed, and as illustrated in the accompanying actors designate similar members throughout the several views and in which:

1 Figure 1 is a sideelevation of a portion of'a shuttle embodying my invention, Fig. 2 is a plan View of F ig. 1, Fig. 3 is a longitudinal, sectional view taken on. the line A-B of 1, Fig. t is a transverse sec- 'tional view of the shuttle, taken on the line C-D of Fig. 1, Fig. 5' is a sectional view taken on the line EF of Fig. 1, Figs. 6 and 7 illustrate the tensioning device or friction bar in difi'erent viewsrespectively, Fig. 8 is a' longitudinal sectional VleW through the friction bar shown in Figs. 6

and 7, Fig. 9 is a detail view of the pre ferred form of thread guide eye used in con nection with the illustrated tensioning device, Fig. 10 is a sectional view on line G-H of Fig. 9, and Fig. '11 is an elevation view of the guide eye.

In carrying my invention into effect, I preferably employ a shuttle 1 containing a central longitudinal bore2, transverse apertures 3, a bobbin 5 and chamber 4 in which the spool or bobbin 5 is supported in any proper manner. The shuttle also contains a diagonally disposed aperture 6 which con ta ns the thread guide 7. The shuttle also contains a slot 8, preferably of curved enter the guide 7 by passing it under the lip Tjand over the nose 7* so that it enters the aperture formed by the curvature of the guide 7 and by this means the thread is retained within the guide. The aperture 3 communicates withv the bore 2 as shown'in Fig. 3, and threaded within these apertures are tension members, each of which comprises a hollow threaded member '10 containing friction material 11 which may be composed of felt or other suitable fabric, rubber or the like. The member 10 contains a notch 12 through which the friction material is exposed. The screw threads are preferably removed adjacent to the edges of the notch, for a purpose hereinafter ex plained. The relation of the tension memher to the shuttle is such that the friction material is exposed within the bore 2, and the thread in passing through the bore 2, comes into contact with the friction material which retards the movement of the thread in a manner that is quite obvious. (See Fig. 3'.)

In operation, the thread 13, in being drawn from the spool 5, is subjected to a so that thread, when passed around the nose '9, enters the bore 2 and may be caused to till slight frictional resistance because of its' contact with the end of the spool; and, in passing over the friction material, the tension is increased. It is obvious that when the thread passes over -.two or more .i'rictional surfaces 11, that the tension is portionately increased. It is quite obvious that the tension is increased ordiminished in proportion to the length of thread in contact with the. friction material, and thereforaprovision is made for regulating the amountof frictional contact of the thread, by turning the screw-threaded member 10, until the thread partially or wholly contacts the, hard smooth surface i'i', of one or both of the tension devices. I

By inspection of Fig. 8, it willbe seen that the frictionalmaterial maybe shifted longitudinally of the member 10, in order to present a new contact surface through the opening 12, and this may be accomplished either by providing-the friction material with a wire loop, or the-like, or by engaging the friction material with a small? hook and pulling it outwardly. New frica ing the member 10 laterally in the apertion surfaces may also be presented by shiftture 3.

I claim; I 1. In combination, a, thread-carrying aperture, and means for increasing or decreasingthe contactsurface between the v friction material and the thread.

2. In a shuttle, ajhody havin .a longitudinal bore through which threa passes and Copies of ,this patent rnay be obtained for give cents eaohpby addressing 'the Conunissioner of Patents,

having an aperture containing a friction bar adapted to contact the thread and having an aperture containing a guide eye through which the thread passes out, said guide eye being formed of sheet material formed into a scroll and having an apertured lip and a nose extending into the aperture in such relation that the thread may be easily inserted into the guide past the nose but prevented there from dislodgment.

In testimony whereof, I afiix my signature in the presence of two witnesses.

. J. N. LE VASSEUR-BELISLE. Witnesses: 4

THOMAS A. 'McAvoY, O. A. TAFT.

Washington. D. G. 

